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B. B. LAKE.

ANTI FRICTION ROLLER BEARING.

Patented Dec, 8, 1885.

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IA--A UNITED STATES PATENT OEFicE.

EZRA B. LAKE, OF OCEAN CITY, NEW JERSEY.

ANTI-FRICTION ROLLER-BEARING.

SPECIFICATION forming part of Letters Patent No. 332,091, dated December 8, 1885.

I Application filed September 7, 1885. Serial Nov 176,308. (No model.)

To all whom it may concern.-

Be it known that I, EZRA B. LAKE, a citizen of the United States, residing at Ocean City, in the county of Cape May and State of New Jersey, have invented certain new and useful Improvements in Anti-Friction Roller- Bearings; and I do hereby declare the following to be a full, clear, and exact description of the invention, reference being had to the accompanying drawings, which form a part of this specification, in which Figure l is a vertical transverse section. Fig. 2 is avertical longitudinal section. Fig. 3 is an isometrical perspective of head. Fig. 4 is an isometrical perspective of ring. Fig. 5 is an isometrical perspective of journaled roller. Fig. 6 is an isometrical perspective of separator-roller. Fig. 7 is a vertical section of a modification.

My invention relates to that class of antifriction roller-bearings in which are employed two series of rollers, one series being the rollers that come in direct contact with the shaft, and the other series of rollers being those which form dividers or separators for the other or shaft rollers.

My improvements have for their object to provide a construction which will permit the separator-rollers being made of larger diameter than heretofore, whereby their speed of rotation will be diminished and the friction of the parts reduced.

My invention consists in the peculiar construction and combinations of parts hereinafter fully set forth, having reference principally to the combination, with a box or case, of two series of rollers, the rollers of one series having journals between which the rollers of the other series are located, and rings which maintain the several rollers in their relative positions, as hereinafter set forth.

Referringto the accompanying drawings, A indicates a cylindrical box or case having two ends or heads, B B, both of which may and one of which, at least, ought to be detachable from the body. Each of said heads has a central opening, b, for the passage of a shaft or spindle, C, and they each have, also, an annular flange, b, surrounding said opening.

D D are rollers which fit in the case A and between the heads B B, their diameters being such that their sides contact with the shaft 0 and with the inner side of the wall a of the body A, forming a rolling bearing between said shaft and body. To prevent said rollers D D from crowding together or touching each other, they are formed with journals d d at both ends, and between these journals are located a series of separator or divider rollers, E E, which are journalless and of a depth or thickness equal to the height of the headflange b.

F F represent rings which encircle the rollers E E and prevent them from Working out of their positions between the journals of the rollers D D and from coming in contact with the wall of the case or box A.

The directions of revolutions of the various rollers, shaft, and rings are shown by the arrows, from which it will be seen that, assuming the box or casing to be stationary with respect to the shaft, the shaft and ring travel in the same direction-though it should be here remarked that the speed of the rings is much less than that of the shaft. The rollers D D travel around the shaft and in the same direction as the latter, rotating on their axes at the same time, their direction of rotation on their axes being the opposite of that of the shaft, which makes the contacting sides of said shaft and rollers move together. The separator-rollers E E also travel with the rollers D D, but have a contrary axial rotation, derived from contact with the journals d d, so that the contacting sides of said rollers E E and journals d d move together. The separator-rollers E E contact with the rings F F, but the journals cl d, which are of less diameter than the rollers E E, do not, so that the sides of said. separator-rollers which contact with said ring travel with the latter, said ring forming rolling contacts between the separator-rollers and the wall of the box or case.

If desired, the shaft or spindle C may be stationary and the box or case revolve, the result, as regards the avoidance of friction, being the same in either event.

The construction shown in Fig.

7 may be adopted as a modification, in which the rollers D D are made without journals and of less length than the separator-rollers, the ends of the latter projecting beyond the ends of the former and fitting between the flanges b of the heads and the rings F F.

What I claim as my invention is as follows:

1. In a roller-bearing, the combination of a box or casing, rolls which form the bearings for a central shaft or spindle, separator-rolls 5 located between the bearing-rolls, and two rings, one at either end of the bearing-rolls and between the latter and the heads of the casing, substantially as shown and described. 2. An anti-friction roller-bearing consisting 10 of box or case A, having heads B B, with central flanged openings, 1) b, rollers D D, having journals (1 d, separator-rollers E E, occupying position between said journals, and ring F,

In testimony that I claim the foregoing I 2o have hereunto set my hand this 31st day of August, 1885.

EZRA B. LAKE. Witnesses:

M. D. CoNNoLLY, R. DALE SPARHAWK. 

